Vehicular travel control device

a technology of vehicle travel control and control device, which is applied in the direction of process and machine control, pedestrian/occupant safety arrangement, instruments, etc., can solve the problems of insufficient deceleration, preceding vehicle may move backward, and driver to feel uneasy

Inactive Publication Date: 2014-05-27
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]With the vehicular travel control device according to (1) above, a target inter-vehicle distance between the preceding vehicle and the subject vehicle is set in accordance with the travel speed of the subject vehicle and the gradient of the road of travel. Accordingly, it may be possible to appropriately set a target inter-vehicle distance in accordance with the driver's sense about the inter-vehicle distance that changes due to the gradient of the road of travel, so that it may be possible to prevent the driver from feeling uneasy due to the following travel control.
[0031]With the vehicular travel control method according to (11) above, it may be possible to appropriately set a target inter-vehicle distance in accordance with the driver's sense about an inter-vehicle distance that changes due to the gradient of the road of travel.

Problems solved by technology

For this reason, the inter-vehicle distance at the time of stopping may cause the driver to feel uneasy.
That is, when a stopped preceding vehicle starts on an uphill road, there is a concern that the preceding vehicle may move backward.
Further, when the subject vehicle is to be stopped on a downhill road, there is a concern that there is insufficient deceleration.
As a result, there is a possibility in that the driver of the subject vehicle feels uneasy due to the following travel control.

Method used

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Examples

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Embodiment Construction

[0048]Hereinafter, an embodiment of the present invention will be described below with reference to drawings.

[0049]For example, as shown in FIG. 1, a vehicular travel control device 10 according to this embodiment is mounted on a vehicle that transmits the driving force of an internal combustion engine E to driving wheels (not shown) through a transmission T / M. The vehicular travel control device includes vehicle state sensors 11, an input unit 12, a control unit 13, a throttle actuator 14, and a brake actuator 15.

[0050]For example, the vehicle state sensors 11 include a vehicle speed sensor 21 that measures the speed of the subject vehicle (vehicle speed), an acceleration sensor 22 that measures acceleration acting in a longitudinal direction of a vehicle body, a brake fluid pressure sensor 23 that measures brake fluid pressure, an inter-vehicle distance sensor 24, or the like. The vehicle state sensors 11 outputs signals of measurement results of various kinds of vehicle informati...

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Abstract

A vehicular travel control device according to the invention includes an inter-vehicle distance measuring section that is mounted on a subject vehicle and measures an inter-vehicle distance between the subject vehicle and a preceding vehicle, a target inter-vehicle distance setting section that sets a target inter-vehicle distance, a following travel control section that performs a travel control so as to make the inter-vehicle distance become equal to the target inter-vehicle distance and stops the subject vehicle while following a stopping of the preceding vehicle, a gradient acquiring section that acquires a gradient of a road being traveled of the subject vehicle, and a vehicle speed sensor that measures a travel speed of the subject vehicle. The target inter-vehicle distance setting section sets the target inter-vehicle distance based on the gradient and the travel speed.

Description

[0001]Priority is claimed on Japanese Patent Application No. 2009-103074, filed on Apr. 21, 2009, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a vehicular travel control device.[0004]2. Description of the Related Art[0005]In the past, there is a known, for example, a following travel control device that stops and moves a subject vehicle according to changes in the travel state including the stopping and moving of a preceding vehicle (for example, see Japanese Patent No. 4230385).[0006]When this kind of following travel control device performs a control for stopping the subject vehicle while following a preceding vehicle, the vehicle is stopped so that a predetermined initial target inter-vehicle distance is equal to the inter-vehicle distance between the preceding vehicle and the subject vehicle at the time of stopping. In addition, if an instruction is made in a stop state...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): B60K31/00B60W10/06B60W40/072B60W30/00B60W30/17B60W40/076G06F7/00B60W10/18B60W10/188B60W10/00B60T7/12B60R21/00B60W10/10B60W10/04
CPCB60W2520/10B60W2520/105B60W40/072B60W2550/142B60W2750/308B60W30/17B60W40/076B60W2552/15B60W2754/30
InventorARAI, TOSHIAKIOKADA, TADAYOSHI
OwnerHONDA MOTOR CO LTD